Automated Engineering Drawings With GD&T Datum Annotation
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Solution Overview
Problem
The manual generation of engineering drawings representing geometric dimensions and tolerances is time-consuming, prone to errors, and requires significant expertise, leading to inconsistencies and increased manufacturing costs.
Innovation Solution
A method and system that automatically generates engineering drawings by accessing a three-dimensional model, prompting user inputs, and applying geometric dimensioning and tolerancing (GD&T) principles to annotate features and dimensions, reducing the need for manual expertise.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual generation of engineering drawings is performed, then expertise and control are maintained, but time consumption and error rates increase
Solution Approach 1:
The patent replaces the manual mechanical process of drawing creation with an automated computer-based system. The system automatically generates engineering drawings by accessing 3D models, extracting geometric data, and applying GD&T rules through software algorithms, thereby eliminating the time-consuming manual drafting process while maintaining accuracy through systematic rule application.
Solution Approach 2:
The system enables self-service by automatically generating engineering drawings without requiring continuous human intervention. The automated system extracts features from 3D models, applies appropriate tolerances and geometric controls, and produces complete drawings independently, reducing reliance on manual expertise while accelerating the drawing generation process.
2Manufacturing precision
If manual expertise is applied to generate drawings, then accuracy is improved, but resource allocation and cost increase
Solution Approach 1:
The patent substitutes manual engineering expertise with an automated computer system that applies GD&T rules and best practices through programmed algorithms. This system automatically analyzes 3D models, identifies critical features, and applies appropriate geometric tolerances and controls, thereby maintaining manufacturing precision while eliminating the need for extensive human expertise and improving overall productivity.
Solution Approach 2:
The system introduces an intermediary automated processing layer between the 3D model and the final engineering drawing. This intermediary system acts as a bridge that systematically translates geometric data from 3D models into standardized 2D drawings with proper GD&T annotations, ensuring consistent accuracy without requiring direct human intervention for each drawing element.
3Productivity
If automated generation is implemented, then productivity and consistency are improved, but complexity of the system increases
Solution Approach 1:
The patent implements a universal automated system that handles multiple drawing generation tasks through a single integrated platform. The system can process various 3D model types, apply different GD&T rules, and generate diverse drawing formats using the same core technology, thereby achieving high productivity and consistency without proportionally increasing system complexity through modular, reusable components.
4Adaptability or versatility
If manual drawing generation is performed, then flexibility in handling unique cases is maintained, but error rates and inconsistencies increase
Solution Approach 1:
The system introduces an intermediary automated processing layer that systematically handles unique and varied features through programmed logic. This intermediary layer ensures consistent application of GD&T rules across all drawing types by automatically analyzing geometric features, determining appropriate tolerances, and applying standardization, thereby eliminating human-induced inconsistencies while maintaining adaptability through flexible rule-based processing.
Data Source
AI summary
One variation of a method includes: accessing a rendering of a model depicting features of a part; accessing a set of target features of the rendering and a function of the part, the function defining a constrained degree of freedom for the part; defining a set of datums intersecting a subset of target features that constrain the part according to the constrained degree of freedom; populating an engineering drawing with a set of projections of the rendering; annotating edges of the subset of target features in the set of projections with datum callouts; annotating edges of the set of target features in the set of projections with feature control frames; annotating a set of edges in the set of projections with the basic dimension callouts representing numerical dimensions relative to the set of datums and reference dimension callouts representing maximal dimensions of the part; and rendering the engineering drawing.